Luigi Mangione Pleads Guilty in UnitedHealthcare CEO Brian Thompson’s Killing

Luigi Mangione admitted to federal stalking charges in the killing of UnitedHealthcare CEO Brian Thompson. In a Manhattan federal court, Mangione, 28, revealed he followed Thompson to an investor conference and killed him on a New York City street in 2024. He explained that he used a 3D printer to make the gun, traveled to New York, and pretended to be an investor to obtain event details.

“On the morning of Dec. 4, 2024, I shot Mr. Thompson in Manhattan, and he died,” Mangione stated in court, appearing in shackles. Thompson’s wife, Paulette, was present in the audience, visibly emotional. Prosecutors intend to seek a life sentence for Mangione, with sentencing scheduled for Dec. 18. U.S. District Judge Margaret M. Garnett confirmed Mangione understood his possible lifelong imprisonment, to which he responded affirmatively.

The Thompson family acknowledged the plea as an essential step toward justice. Mangione faces more cases, including a New York state murder prosecution. Federal prosecutors did not offer Mangione any plea deal or avoid a death penalty, as the possibility was removed when a federal murder charge was dismissed. His lawyers did not explain his current guilty plea decision but sought to dismiss the New York case on double jeopardy grounds, arguing against two trials for one event.

Defense attorney Karen Friedman Agnifilo stated that Mangione accepted responsibility for Thompson’s death and opposed multiple prosecutions. The Manhattan District Attorney’s office maintained its commitment to pursuing the case and intends to contest the defense’s dismissal motion.

“Mr. Mangione has accepted full responsibility for the death of Brian Thompson,” defense lawyer Karen Friedman Agnifilo said outside court.

Surveillance footage showed Thompson, 50, being shot from behind by a masked attacker. Authorities highlighted the case’s focus on insurance industry practices, due to phrases written on the ammunition that criticized insurers for avoiding claim payments. This scrutiny further intensified when Mangione’s private writings accused health insurers of being greedy.

Mangione, a University of Pennsylvania graduate from a wealthy Maryland family, blamed the health insurance system for his actions. He stated that years of suffering from severe back pain and facing insurance challenges prompted his pursuit of Thompson, witnessing similar stories of others around him.

Friedman Agnifilo noted her client felt the system had failed him and destroyed his life. Authorities pointed out that Mangione was never a UnitedHealthcare customer.

“To those who idolize Luigi Mangione, I say this. Violence is not a cause. Murder is not a message. And a killer is certainly not a hero,” New York Police Commissioner Jessica Tisch said outside court.

New York Police Commissioner Jessica Tisch and U.S. Attorney Jamie McDonald dismissed any notion of fame through violence.

Brian Thompson led a major U.S. health insurer and worked at UnitedHealth Group Inc. for two decades before becoming CEO in 2021. He and his wife had two sons in high school at the time of his death. The company expressed gratitude to law enforcement, emphasizing how his violent death devastated those who knew him.

Mangione’s case faced several legal challenges. He was arrested in Pennsylvania, days after the shooting, with federal charges initially dismissed. However, evidence such as a 3D-printed pistol and a notebook with incriminating details were permitted for use in court. State charges included the gun and notebook as evidence after terrorism charges were dismissed. While the case was set for a September trial, the defense’s new efforts to dismiss the case could affect the timeline.